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<p>This study reports the development of an effective S-scheme CuO-ZnO photocatalyst for the degradation of Sandalfix orange P3R dye in aqueous medium. The CuO-ZnO in a one-to-one ratio was fabricated by the precipitation method. Then, the fabricated CuO-ZnO was characterized using XRD, SEM, EDX, and TGA. The photocatalytic performance of the fabricated CuO-ZnO was evaluated through the degradation of Sandalfix orange P3R dye under natural sunlight. About 96, 78, and 64% removal of Sandalfix orange P3R dye was observed using 100, 150, and 200 mg/L solutions of dye. The degradation data were analyzed by non-linear methods for the kinetics study. The enhanced photocatalytic performance of CuO-ZnO was described by the S-scheme mechanism.</p>

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Development of S-scheme CuO-ZnO photocatalyst for the degradation of Sandalfix orange P3R dye

  • 期刊论文

  • 发表日期：

    2026年3月11日

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  • Muhammad Saeed,
  • Azka Tariq,
  • Nadia Akram,
  • Muhammad Usman,
  • Atta ul Haq,
  • Muhammad Tahir Saddique

摘要

This study reports the development of an effective S-scheme CuO-ZnO photocatalyst for the degradation of Sandalfix orange P3R dye in aqueous medium. The CuO-ZnO in a one-to-one ratio was fabricated by the precipitation method. Then, the fabricated CuO-ZnO was characterized using XRD, SEM, EDX, and TGA. The photocatalytic performance of the fabricated CuO-ZnO was evaluated through the degradation of Sandalfix orange P3R dye under natural sunlight. About 96, 78, and 64% removal of Sandalfix orange P3R dye was observed using 100, 150, and 200 mg/L solutions of dye. The degradation data were analyzed by non-linear methods for the kinetics study. The enhanced photocatalytic performance of CuO-ZnO was described by the S-scheme mechanism.